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18

The golden hour occurs around sunset and sunrise. Its duration is not exactly an hour and depends on location and date. Typically, it lasts between 30 mins (usually in the winter when days are shorter) and 2 hours (usually in the summer when days are longer). However, close to poles it may not happen, or it may last much longer when it is close to a ...


18

The golden hour is the period of time (roughly an hour) immediately either side of sunrise/sunset. At this time the sun is very low in the sky. As a result the light passes through much more of the atmosphere. The result of this is that: the high frequencies (blues) are filtered out giving a very warm light the light is diffused by particles in the air, ...


14

Using Picasa (3.8) it's very easy to either shift or set the date of a batch of photos. And it's cross-platform (Windows, OSX and Linux) and free. And no terminal fiddling... Open Picasa Select your photos Click Tools > Adjust Date and Time Fill in as required (see screenshot)


12

If "to get good shadows" he means shadows cast by surface features on the moon, thats entirely a matter of opinion. The moon has dozens of faces, from thin crescents, normal crescents, half moons, gibbous moons, full moons for both waxing and waning, as well as eclipsed moons. I've shot the moon a lot myself, and I can't say there is any "right time". Its ...


10

If you are comfortable with command line tools from ImageMagick, you can do something like this: convert orig_image.jpg -gravity NorthWest -annotate 0 "%[EXIF:DateTimeOriginal]" new_image.jpg You can run this to batch process all your images. Details ImageMagick has an array of command line tools to do different things with image. I'm using the convert ...


7

I like to have date and times on photos reflect local times and date at the location. Unlike another respondent, I like to be able to search for a photo taken "at about 3pm on the Thursday afternoon when I was in Xian" and, while there are other ways of cataloguing and ordering, being able to search on local date and time is a bonus. Travel from NZ involves ...


7

Absolutely. In some cases, people do this for the effect that is achieved. Flickr, for example, has a group dedicated to images from expired film. Some of the outcome is really quite nice, but it is obviously going to be hit or miss since the nature of degradation is unpredictable. Also, film expiration is not absolute. It largely depends on storage ...


7

There's already a similar question on the ExifTool forums. It can be done using two sequential ExifTool commands. First, make sure all the date to the same exiftool -datetimeoriginal="2015:02:22 00:00:00" DIR And then increment the time on each exiftool '-datetimeoriginal+<0:0:${filesequence}0' DIR


7

No. PNG does not support EXIF. In fact, lack of a standardized metadata block is one of its big disadvantages for photography. If you need a lossless format which preserves (very-similar-to-EXIF, since it's the basis for EXIF) metadata, try TIFF. The downside, though, is that TIFF rendering support is not as widespread as that for PNG (for web applications ...


7

The problem is that the metadata that Windows uses as the "Date Taken" varies by file. For example, for a JPG, Windows will use Exif:DateTimeOriginal if it exists, followed by XMP:DateTimeOriginal, followed by CreateDate, followed by FileCreateDate (the system file create date). (Off topic, if anyone has a link that lists details of all the types of files ...


7

Yes, it is the time at which the location was determined. That may be a second before the picture was taken, but it could be much more, if for example you are in a canyon and the GPS is unable to make a fix.


7

ExifTool is my go-to tool for time-shifting photos. Assuming Windows, to add 1 hour to all date/time fields stored in the photo metadata: exiftool.exe -AllDates+=1 C:\path\to\folder\of\photos or to subtract one hour: exiftool.exe -AllDates-=1 C:\path\to\folder\of\photos By default, this will make a copy of the original as backup before modification. To ...


7

EXIF v2.31 (p49) defined time-zone offset fields in 2016 and the XMP time-zone guidelines (p33-34) also consider time-zones. The implementation in cameras and programs is rather minimalist at the moment. See also my answer to an older question: What do you do with your camera clock time in relation to time zones?


6

That film can certainly still make images, but some things could be a little off. It was stored at rather high temperature, so expect some degradation. If it's color film (you didn't say), then the color ballance is probably the biggest change you'll notice. The next effect is loss of ISO film speed. The main reason for color ballance problems is that ...


6

As I just found out, this is a bug in Lightroom, more than a year old, but still not fixed. Please see this thread on the support forums where an employee of Adobe confirmed the bug to be linked to the USB connection with the camera. They also recommend to use a card reader instead of the USB connection.


6

CIPA DC- 008 is the standard for Exif 2.2. Of note it makes no mention of "timezone." "GMT" is also not mentioned either. The term "UTC" does appear but only specifies the GPS time is recorded as such. Pedants may note that this is slightly misleading since GPS time is not identical to UTC My point, in short, is that omission of timezone is likely not ...


5

My cameras (Nikon D300s and Canon S95) have the capacity to use time zones. For instance at the moment I'm in Brazil, and rather than change the time I've left them on GMT (or UTC if you're being modern about it) and changed the time zone to -3. In the last 4 months I've been through three time zones. Part of my work involves photography and having the right ...


5

Black and white The part of the film most exposed to the environment is on the outside of the spiraled roll tucked into the reel. It's therefore a reasonable test to withdraw a small amount in a changing reel, clip it off, load it into a tank, and develop and briefly fix it. If the film comes out clear, or perhaps with some periodic marks along the edges (...


5

Unfortunately not. Most cameras only have a 'dumb' timezone-ignorant clock. You do of course also have no guarantee that the clock is set right, so the timestamp in the EXIF data may be wrong anyway, even if you know or assume the correct time zone. What you might do to improve your interpretation of the EXIF timestamp is, if the image is geo-tagged, to ...


4

Photographing the moon is a lot like shooting a portrait. When the moon is full the light hitting the moon is coming from your direction, this is flat light, you can get a lot of details but you can't see and texture in the moon because there are no shadows (think about it as the on-camera flash of lunar photography). When the moon is a thin crescent the ...


4

Page 68 of the K-5 Operating Manual states the following: ... 9. Press the four-way controller (▼) to select [Settings complete]. 10. Press the OK button. ... When you press the OK button in Step 10, the seconds value is set to 0. To set the exact time, press the OK button when the time signal (on the TV, radio, etc.) reaches 0 ...


4

With regards to EXIF v2.31 (p49) time-zone integration (2016) and XMP time-zone guidelines (p34) it might make sense to look at this problem once more. Local time is important especially in the human-based interaction with pictures. Looking at a sunset photo one expects the clock to show something in the second half of the day, for breakfast photos rather ...


4

For a geeky explanation, think of a rainbow. The red, orange and yellow bands make up the outside bands, while blue, indigo and violet are inside. This indicates that the light wavelengths that make up the outside bands actually bend less than the inside bands. So as the Sun sinks lower on the horizon, the blue components are not hitting the earth where you ...


4

This is very helpful, it shows many available tools: http://petapixel.com/2012/11/05/how-to-fix-your-timestamps-if-you-forgot-to-update-your-camera-for-daylight-savings/ namely how to use Adobe Lightroom, Picasa, Jhead, ExifTool and Exifer to shift the date. Personally I use ExifTool, and Exiv2, which works on MacOSX to do the following in the terminal: ...


4

I don't think any significant software which uses this. The EXIF standard is to assume that the time zone matches the correct one for the location where the photo was taken. Most cameras have ad hoc non-standard tags for dealing with this; for example, my Pentax camera sets World Time Location. However, EXIF isn't all there is, and in fact I think most ...


4

Yes, it is possible. The ideal case would be if it was visible from your home so that you can leave a tripod stationary and just attach the camera when you need to. If the construction site is somewhere else, however, you can't use the tripod to mark a location. Better try to think of a good location to shoot from with something that won't move for a while - ...


4

The Nikon D5100 uses a rechargeable internal clock battery. It should have enough charge to give you 3 months to charge the main battery. A main battery that is almost completely empty, should also have enough power left to keep the clock running for months or even years. There is probably a problem with your internal battery, or a contact to it. The ...


3

This depends totally on the conditions it is kept. The date on the film tends to be a conservative figure and as long as it's been kept cool it tends to last a lot longer than this. If the film is years out of date you have to make a decision if you want to risk it because you may end up with nothing.


3

The real reason in the canon case is the license for the codecs. If you go past the 29:59 then you are required to have a license per unit. http://www.mpegla.com/main/default.aspx http://www.businesswire.com/portal/site/home/permalink/?ndmViewId=news_view&newsId=20090705005026&newsLang=en Wav files are limited due to the 32bit code and thus ...


3

Please check out http://jambula.sourceforge.net/ to batch insert shooting date/time/comment on a jpeg image in different formats and languages. A special feature is that the date stamp is lossless. It is supported on Linux and Mac also.


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